One UPDATE Statement Without Index Crashed the Business!
dbaplus社群49 字 (约 1 分钟)
50
A single UPDATE statement without an index caused full table scan, lock contention, and connection exhaustion, ultimately crashing the business.
入选理由:未加索引的UPDATE语句触发全表扫描,执行时间长达12分钟
FeaturedArticle#MySQL#SQL Optimization#Database Failure#Operations Monitoring中文